Lineco Cardboard Easel Backs
Do you need a display to stand up, perhaps a foam board display to be self supporting.
Self Adhesive Easel Backs are the easy and inexpensive choice for this purpose.
They come in white and black and also a double winged easel back for added support.
Just peal the protective tape off and apply.
see also: Gray Glue-On Large Cardboard Easel Backs
White Single Wing Self Stick Easel Backs 25 Packs